FR2262886A1 - Automatic tuning cct. - designed for capacity diode tuned receivers and effective for AM and FM stations - Google Patents

Automatic tuning cct. - designed for capacity diode tuned receivers and effective for AM and FM stations

Info

Publication number
FR2262886A1
FR2262886A1 FR7506617A FR7506617A FR2262886A1 FR 2262886 A1 FR2262886 A1 FR 2262886A1 FR 7506617 A FR7506617 A FR 7506617A FR 7506617 A FR7506617 A FR 7506617A FR 2262886 A1 FR2262886 A1 FR 2262886A1
Authority
FR
France
Prior art keywords
capacity diode
cct
stations
designed
effective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7506617A
Other languages
French (fr)
Other versions
FR2262886B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SABA GmbH
Original Assignee
SABA GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19742410029 external-priority patent/DE2410029C2/en
Application filed by SABA GmbH filed Critical SABA GmbH
Publication of FR2262886A1 publication Critical patent/FR2262886A1/en
Application granted granted Critical
Publication of FR2262886B3 publication Critical patent/FR2262886B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)

Abstract

The tuning circuit is fully electronic and automatic, is proof against interference and is sensitive to even very weak stations close to strong one. The tuning function remains unaffected by impulses arising from the frequency modulation on the flanks of the intermediate frequency circuits. The oscillating circuit are tuned to the intermediate frequencies of the intermediate frequencies of the amplitude modulated and/or frequency modulated oscillation. Each oscillating circuit has a discriminator and a capacity diode switched in paralle which periodically changes its capacitance value via a pulsed switching stage. A rectifier stage follows the discriminators and has a limited filter connected to it, which in turn has a scanning discriminator coupled to it.
FR7506617A 1974-03-02 1975-03-03 Automatic tuning cct. - designed for capacity diode tuned receivers and effective for AM and FM stations Granted FR2262886A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742410029 DE2410029C2 (en) 1974-03-02 Circuit arrangement for an automatic station search in radio receivers tuned to capacitance diodes

Publications (2)

Publication Number Publication Date
FR2262886A1 true FR2262886A1 (en) 1975-09-26
FR2262886B3 FR2262886B3 (en) 1977-11-10

Family

ID=5908898

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7506617A Granted FR2262886A1 (en) 1974-03-02 1975-03-03 Automatic tuning cct. - designed for capacity diode tuned receivers and effective for AM and FM stations

Country Status (7)

Country Link
AT (1) ATA154375A (en)
BE (1) BE826180A (en)
CH (1) CH579853A5 (en)
DK (1) DK82275A (en)
FR (1) FR2262886A1 (en)
IT (1) IT1033326B (en)
NL (1) NL7502405A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809433A (en) * 1986-05-15 1989-03-07 Corona Clipper Company Agricultural shears with lancet blade
FR2753120B1 (en) * 1996-09-10 1998-12-11 Virax Sa TUBE CUTTER CLIP DEVICE FOR CROSS-CUTTING A PLASTIC TUBE

Also Published As

Publication number Publication date
CH579853A5 (en) 1976-09-15
NL7502405A (en) 1975-09-04
ATA154375A (en) 1980-01-15
DE2410029A1 (en) 1975-05-15
FR2262886B3 (en) 1977-11-10
BE826180A (en) 1975-06-16
DE2410029B1 (en) 1975-05-15
DK82275A (en) 1975-11-03
IT1033326B (en) 1979-07-10

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Legal Events

Date Code Title Description
ST Notification of lapse